Source:http://linkedlifedata.com/resource/umls/id/C0018282
MSH: Endogenous or exogenous substances which inhibit the normal growth of human and animal cells or micro-organisms, as distinguished from those affecting plant growth (= PLANT GROWTH REGULATORS).,CSP: endogenous or exogenous substances which inhibit the normal growth of animals, plants, fungi, or their tissues, or the growth of microorganisms.